Organization responsible for the statistics
The statistics are collected, compiled and published by the
Central Statistics Office.
Objectives and users
Strikes and lockouts
The statistics cover:
Working to rule, go-slows, and overtime bans are not included.
- constitutional or official strikes
- unofficial strikes
- sympathetic strikes
- political or protest strikes
- general strikes
- work stoppages initiated by employers
- rotating or revolving strikes
- sit-ins (but only if production is lost)
Duration of at least one day or aggregate time not worked of at
least 10 workdays.
No particular branches of economic activity or sectors are
Workers directly involved, workers indirectly involved and
workers rendered idle in economic units other than those directly
involved in the strike or lockout. As well as regular paid
employees, including part-time workers, the statistics cover
temporary, casual and seasonal workers; in principle, unpaid
family workers are also covered, as well as workers laid off and
those absent on sick or annual leave or absent for other reasons.
No particular occupational groups are excluded.
Types of data collected
Information on the outcome of the dispute, the terms of
settlement and official or unofficial status are collected but
not processed or published.
- number of strikes and lockouts
- number of economic units involved
- number of workers involved
- time not worked
- matter in dispute
- union(s) involved
- dates stoppage commenced and ceased
Concepts and definitions
A temporary stoppage of work wilfully effected by a group of
workers or by one or more employers with a view to enforcing a
The definition is taken from the Resolution concerning
statistics of industrial disputes adopted by the Third
International Conference of Labour Statisticians (1926).
Methods of measurement
Strikes and lockouts
The basic unit of measurement used to record a strike or lockout
is the case of dispute. The resumption of a strike or lockout
that is interrupted but later recommences, still due to the same
case of dispute, is considered to be the same strike or lockout
regardless of the time lapse.
All work stoppages resulting from a single case of dispute,
occurring in different establishments of the same enterprise or
in establishments of different enterprises, whether
simultaneously or at different times, are counted as one strike
or lockout only.
Economic units involved
The economic unit is the enterprise, defined as the smallest
legally separate unit of production. The number of economic
units is not measured in the case of a general strike or a
political strike. In a public sector strike, the public sector
is taken as a single economic unit (employer).
The number of workers involved is the maximum number of workers
that took part during the course of the stoppage, even if some
workers participated for only part of the duration. Part-time
workers are counted as individuals on the same basis as full-time
The duration is measured in workdays from the date the strike or
lockout began in the first economic unit involved to the date it
terminated in the last one.
Time not worked
Total time not worked is measured in workdays, either by
ascertaining the total amount of time not worked on each day of
the strike or lockout and summing these totals, or as the product
of the number of workers involved and the duration; care is
taken in the latter case to take into consideration the differing
daily levels of worker participation. Time not worked is
measured for workers directly involved and workers indirectly
involved. The shorter working hours of part-time workers are
taken into account as time not worked by part-time workers
involved is converted to full-time equivalents. Overtime is not
taken into account in the estimate.
Cause of dispute
Related to collective bargaining: